Sea otters are a symbol of the beauty and diversity of marine life that can be found along the California coast.
They're also important to the health and stability of coastal marine ecosystems, hence they're considered critical species.
Sea urchins and other invertebrates that graze on giant kelp provide food for them.
Without sea otters, kelp forests and, with them, a variety of animal species that rely on kelp environments for existence would be destroyed.
Kelp forests also safeguard the coast from storm surges and absorb a significant amount of dangerous carbon dioxide from the atmosphere.
Sea otters are especially important since their health reflects the health of the coastal waterways of California.
Answer:
Explanation: I think the answer is Dichotomous.
Answer:
"As a molecule moves through the plasma membrane it passes through <em>a hydrophilic layer of phospholipid heads then a hydrophobic layer of phospholipid tails and then another hydrophilic layer of phospholipid heads".</em>
Explanation:
Biological membranes are formed by two lipidic layers, proteins, and glucans.
Lipids characterize for being amphipathic molecules, which means that they have both a hydrophilic portion and a hydrophobic portion at the same time. These molecules have a lipidic head that corresponds to a negatively charged phosphate group, which is the polar and hydrophilic portion. They also have two lipidic tails that correspond to the hydrocarbon chains -the apolar and hydrophobic portion- of the fatty acids that esterify glycerol.
Membrane lipids are arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, while their hydrophobic tails are against each other, constituting the internal part of the membrane.
Through this lipidic bilayer, some molecules can move from one side of the cell to the other, which happens because of concentration differences. When this occurs, molecules must pass through the hydrophilic layer of phospholipid heads then through the hydrophobic layer of phospholipid tails and then again through another hydrophilic layer of phospholipid heads.
Another part gets unbalanced as well.
Like if flys went extinct, lizards would also go extinct because that's their food,
